Toothbrush



w. J. HINES. TOOTHBRUSH.

APPLICATION FILED SEPT. H, 1920- 1A35 641 Q Patented Nov. 14,1922.

Patented Nev. i i, 1922..

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WILLIAM J. HINES, OF HARTFORD, CONNECTICUT, ASSIGNOB TO THE FULLER BRUSHCOMPANY, A CORPORATION OF CONNECTICUT.

TOOTHBBUSH.

Application filed September 11, 1920.

To all w 7mm it may concern Be it known that 1, WILLIAM J. HINES, asubject of the King of Great Britain, and a resident of Hartford, in thecounty of Hartford and State of Connecticut, have invented new andImproved Toothbrushes, of which the following is a specification.

My invention relates to the class of devices above named, and an objectof my invention, among others, is to provide a device of this kind thatshall be extremely effective in use and one that may be readilycleansed.

One form of brush embodying my invention and in the construction and useof which the objects herein set out, as well as others, may be attained,is illustrated in the accompanying drawings, in which- Figure l is aView in side elevation of a brush embodying my invention with the brushback out in central lengthwise section.

Figure 2 is a View in side elevation of my improved brush.

Figure 3 is a rear view of the back of the brush, the handle beingbroken off.

Figure 4 is a view in cross section through the back of the brush.

In the accompanying drawings the numeral 5 indicates a handle and 6 aback of a brush embodying my invention, which parts may be of anysuitable material. An opening 7 is formed through the back 6 from thefront to the rear thereof, this opening being preferably of a lengthnearly equal to that of the back, and of a width nearly equal to thewidth of the back, said opening preferably having parallel sides.

Recesses 8 are formed at opposite ends of the back to receive the endsof a brush head comprising bristles 9 twisted into a wire core 10 thathas some flexibility and the protrud- Serial No. 409,628.

ing ends of which are entered into the recesses within which said endsmay be held in any suitable manner, as by means of a latch 11appurtenant to one of the recesses.

The opening 7 facilitates the formation of the recesses 8 by providingclearance for the tools used in making the recesses. This openingfurther serves an extremely useful purpose in enabling a stream of waterto be projected through the opening into the back of the brush head andto penetrate to the twisted wire cord thereof, thereby enabling thebrush to be readily cleaned. A very important feature of this opening isthat of preventing turning movement of the brush head, the bristles ofsuch head projecting into said opening to such extent as to support andhold the head against turning movement. This opening also permits thehead to have a yielding action in use, as

advantages it will tendto prevent the wire core from coming in contactwith the teeth.

I claim 1. A tooth brush including a back, a twisted-in wire brush headhaving projecting ends, and means for securing said ends,

said back having an opening spanned by said head and of a width topermit spring action of the brush head therein.

2. A tooth brush including a back having an opening therein extendingfor substantially its whole length, and a twisted-in-wire brush headhaving bristles projecting into said opening to hold said brush againstturning movement.

WILLIAM J. HINES.

